Answer:
Can you put a couple of extra pencils in my backpack?
If you put a couple of strawberries on top, the kids will gobble up the fruit salad!
"Put a couple of signs around the neighborhood, and the yard sale will attract plenty of customers!" ordered Mrs Apple.
"Sarah can put a couple of footballs in my handbag so No-one will notice that we are going to steal them." thought Mr Crumps